You are reading a single comment by @sasmon and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
@sasmon
If it is only off my a mm or so, just clamp it down and the rails will clip into the grooves on the post. I have noticed small variations from saddle to saddle, and the rails have a bit of flex in them.